AMC 8 2014 Problem 3
AMC8 2014 年第 3 题
表达式与运算★☆☆☆☆
Isabella had a week to read a book for a school assignment. She read an average of 36 pages per day for the first three days and an average of 44 pages per day for the next three days. She then finished the book by reading 10 pages on the last day. How many pages were in the book?
Isabella 的学校作业是花一周的时间读一本书。她前三天每天平均读 36 页，后三天平均每天读 44 页，之后在最后一天读了 10 页把整本书读完了。问这本书总共有多少页？
- A.240
- B.250
- C.260
- D.270
- E.280
正确答案 · Correct Answer
B
解析 · Solution
Solution 1
Isabella read pages in the first 6 days. Although this can be calculated directly, it is simpler to calculate it as , which gives that she read 240 pages. On her last day, she read 10 more pages for a total of 240+10= pages.
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